Mawk. Adult slang, derogatory, dated (noun): a low or slovenly prostitute
Found this listing on the web. The word "mawker" Appeared in a British novel, Murder in The Thrall", Anne Cleeson. "Get on with yourself, you mawker" (chiding herself, I.e., stop dragging your feet, get on with yourself, you dosser.
Get on with yourself, you mawker.